FTP/File Sender Adapter over SSL - 500 Illegal PORT command.

Hello Experts!
I'm trying to configure FTP Sender Adapter over SSL. This is the configuration I'm using:
Server: server01
Port: 21
Data Connection: Active
Timeout: 100
Connection Security: FTPS (FTP Using SSL/TLS) for Control and Data Connection
Command Order: AUTH TLS, USER, PASS, PBSZ, PROT
I have imported ftp server certificate into TrustedCAs key store. When the sender adapter tries to connect it receives the error 500 Illegal PORT command when getting files list.
This is an excerpt of the logs of connection steps:
#Plain##ftp server returns reply '220 Restricted Access. All Actions are monitored.'#
#Plain##Detected 'AUTH TLS' command: Preparing TLS/SSL connection upgrade#
#Plain##'AUTH TLS' successful: Upgrading control channel to TLS/SSL#
#Plain##ftp server returns reply '234 Proceed with negotiation.'#
#Plain##ftp server returns reply '331 Please specify the password.'#
#Plain##ftp server returns reply '230 Login successful.'#
#Plain##ftp server returns reply '200 PBSZ set to 0.'#
#Plain##ftp server returns reply '200 PROT now Private.'#
#Plain##ftp server returns reply '215 UNIX Type: L8'#
#Plain##ftp server returns reply '200 Switching to ASCII mode.'#
#Plain##ftp server returns reply '250 Directory successfully changed.'#
#Plain##ftp server returns reply '500 Illegal PORT command.'#
Does anybody know how to solve it?
Thank you in advance!
Roger Allué i Vall

Ok! This is the maximum i could obtain:
Fri Dec 11 15:28:12 2009 [pid 15206] FTP response: Client "10.58.42.108", "220 Restricted Access. All Actions are monitored."
Fri Dec 11 15:28:12 2009 [pid 15206] FTP command: Client "10.58.42.108", "AUTH TLS"
Fri Dec 11 15:28:12 2009 [pid 15206] FTP response: Client "10.58.42.108", "234 Proceed with negotiation."
Fri Dec 11 15:28:12 2009 [pid 15206] FTP command: Client "10.58.42.108", "USER iubsint"
Fri Dec 11 15:28:12 2009 [pid 15206] [iubsint] FTP response: Client "10.58.42.108", "331 Please specify the password."
Fri Dec 11 15:28:12 2009 [pid 15206] [iubsint] FTP command: Client "10.58.42.108", "PASS <password>"
Fri Dec 11 15:28:12 2009 [pid 15205] [iubsint] OK LOGIN: Client "10.58.42.108"
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP response: Client "10.58.42.108", "230 Login successful."
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP command: Client "10.58.42.108", "PBSZ 0"
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP response: Client "10.58.42.108", "200 PBSZ set to 0."
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP command: Client "10.58.42.108", "PROT P"
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP response: Client "10.58.42.108", "200 PROT now Private."
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP command: Client "10.58.42.108", "SYST"
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP response: Client "10.58.42.108", "215 UNIX Type: L8"
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP command: Client "10.58.42.108", "TYPE I"
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP response: Client "10.58.42.108", "200 Switching to Binary mode."
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP command: Client "10.58.42.108", "CWD /interfaces"
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP response: Client "10.58.42.108", "250 Directory successfully changed."
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP command: Client "10.58.42.108", "PORT 10,58,45,108,159,112"
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP response: Client "10.58.42.108", "500 Illegal PORT command."
I think we found the problem though. FTP Administrator says this is wrong:
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP command: Client "10.58.42.108", "PORT 10,58,45,108,159,112"
it should be
Fri Dec 11 15:28:12 2009 [pid 15207] [iubsint] FTP command: Client "10.58.42.108", "PORT 10,58,42,108,159,112"
Something is making SAP PI to take a wrong ip address (This server has two).
I'll let you know if we solve it!!
Thank you!!!

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